Improved machine joe cutting papee collaes



' tafrl` 'gettin-tt 'i @fitta DAVID M. SMYTH, or ORANGE, NEW'JERSEY,ASSIGNOR To of 1?. DORMAN,

' or NEW YORIQN. Y. Letters .Patent No. 71,074, :fi-ated November 19,1867.

i unprovenl MAGHINE ,ros CUTTING PAPER COLLARS.

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ro ALL WnoM IT 'MAY coNcnnN: i t v Be it known that I, DAVID M. SMYrH,of Orange, in the county of Essex, and State of Ne\v,-Tersey, haveinvented certain new and useful Improvements in Machiiiery for CuttingPaper Collars; and I do hereby declare' that the following is a full,clear, andexact description thereof, reference being had to theaccompanying drawings, making part of this spceication, in which-4- iFigure -1 is a top view or plan.

Figure 2, an end elevation.

Figure 3, a side elevation; and

Figure 4, a longitudinal vertical section.

The same letters indicate likeparts in all -the figures. v v

My said invention relates to machinery for cutting collars successivelyfrom a. sheet of4 paper, of a width equal to the length of the intendedcollar, the sheet being advanced or fed forward, at each operation, adistance equal to the width of one collar, to three pairs of shears, twoof which cut od the corners to give the 'required 'form to the ends ofthe collar, and the other severs the collar from the sheet.

In the aceompanying 'drawings, a represents a suitable frame, on thetable 6 of which the sheet o'f paper is placed, fromwhioh collars are tpbe cut. On this table is mounted a sliding frame, consisting of twoparallel bars c c, connectedby cross-bars d al. This frame slidesbetween ways e e, and receives a longitudinal reciproeating motion inone direction by tuppets 'projecting from the faces of two wheels ff ona shaft, g, one being on each side ofthe frame, and these tappetsaet'uate two levers that bear against the projecting ends of the bar d,and soV Soon as the 'tappets have passed, the frame is moved back by thetension of a spring, L. To the middle ofthe Abar, d is' attached aspring-arm, z', in the back end of which ismounted a wheehj, whoseperiphery is toothed, andwhich by th^ spring-arm z' is borne on to thesurface of the paper, so that when the frame ismoved forward the teethofthe wheelj shall draw or push forward the shc'et of-paper the requireddistance, the wheel being prevented from turning by a spring-pawl,]c,when the carriage moves in that direction, but which will permit it to'turn freely and roll over the paper during the back motion. So soon asthe sheet of paper is advanced or fed forward, as above stated, it i'sclamped and held to the surface of the table during the back motion ofthefeeding mechanism and during the shearing operation, and thenliberated by a clampingsplate, l, secured to the forward end of twolevers m m, one on cach side of the table, and moving on fulcrum-'pinsprojecting from the sides ofthe frame. The said levers are operated todepress the clamping-plate by means of tappetwheels n n, on the shaft g,and in the opposite `direction to lifttheI clamping-plate by means ofsprings that act on the shears to. be presently described.- Forward ofthe clamping-plate there are three pairs of shears o 0, p p', and q Q.The two pairs, o o andop, consist, each pair, of one stationary bladeOp, and of one movable blade o and p, theitwo blades being connected bya fulerum-pin in the usualmanner of connecting the two blades of a pairof shears, These two pairs oflshears are curved in opposite directions,or otherwise shaped to suit the form required to be given 1to the endsof a collar. The movable blades op" have each an arm extending beyondthe fulcrum-pin, and the one, o, extends over the other as: representedat so that any movement imparted to the one, p', will be communicated tothe other; and the outer shearing end of the blade p is extended underone of the levers m of the clamping-plate, so that the shearingmotion'of the movable blades of these shears is derived from the leversof the clampingplate, a spring, s, being connected with the extendedarms of the blades to open thom. The third pair of shears, q q', are forshearing olf the collars the required-width, and they also consist of astationary blade, '9, and amovable blade, g', connected by afulcrum-pinV like theother shears, and .the movable blade extends beyondthefulcrum-pin, and'is connected-'with one of the levers of theclamping-plate, to receive its shearing motion therefrom, as representedat t, a spring, u, boing applied toopen the shears, and which aids inlifting the clampingplate. This pair of shears is represented as beingstraight, as paper collars are --usuallycut straight along the length,but if it should be desired to make collars curved, then 'the shearsshould. be made of a corresponding curve.

By means of the combinations above described, paper collars can he outof the form required, with clean, smooth edges, and with'g'reatrapidity, from a sheet of peper of any desired length; i

What I claim as my invention, and desire to secure by Letters Patent, s4

The combination of the two pairs of hinged shears for shaping the endsof paper collars, with the parfoi shears for cutting off the collarsfrom a.l st rip or sheet of paper, and the feeding mechanism, or theequivalent thereof, substantially as described.

And Ialso claim the toothed wheel with its holding-pawl, and connectedwith the sliding reciprocating frame by a. spring-arm, or equivalent, incombination with the holding-clamp, substantially as and for the purposedescribed.

` 4 D. M. SMYTH.

Witnesses:

WM. H. BISHOP, A. DE LACY.

